diff --git a/lib/CXGN/BrAPI/v2/Observations.pm b/lib/CXGN/BrAPI/v2/Observations.pm
index 264dfd7b90..4b07a6b329 100644
--- a/lib/CXGN/BrAPI/v2/Observations.pm
+++ b/lib/CXGN/BrAPI/v2/Observations.pm
@@ -62,7 +62,7 @@ sub search {
         {
             bcs_schema=>$self->bcs_schema,
             data_level=>$observation_level,
-            trial_list=>$trial_ids,
+            trial_list=>$study_ids_arrayref,
             folder_list=>$trial_ids_arrayref,
             include_timestamp=>1,
             year_list=>$season_arrayref,